Su una installazione di Odoo 10 effettuata tramite pip riscontriamo un corretto funzionamento se Odoo viene avviato con il parametro workers = 0. Tuttavia, anche impostandolo a 2 (con effettivamente 8 core disponibili), riscontriamo una valanga di errori relativi a Gevent:

Mar 29 16:15:47 webserver odoo[6023]: Traceback (most recent call last):
Mar 29 16:15:47 webserver odoo[6023]:   File "/home/odoo/odoo10/bin/odoo", line 5, in 
Mar 29 16:15:47 webserver odoo[6023]:     __import__('pkg_resources').declare_namespace('odoo.addons')
Mar 29 16:15:47 webserver odoo[6023]:   File "/home/odoo/odoo10/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3088, in 
Mar 29 16:15:47 webserver odoo[6023]:     @_call_aside
Mar 29 16:15:47 webserver odoo[6023]:   File "/home/odoo/odoo10/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3072, in _call_aside
Mar 29 16:15:47 webserver odoo[6023]:     f(*args, **kwargs)
Mar 29 16:15:47 webserver odoo[6023]:   File "/home/odoo/odoo10/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3116, in _initialize_master_working_set
Mar 29 16:15:47 webserver odoo[6023]:     for dist in working_set
Mar 29 16:15:47 webserver odoo[6023]:   File "/home/odoo/odoo10/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3116, in 
Mar 29 16:15:47 webserver odoo[6023]:     for dist in working_set
Mar 29 16:15:47 webserver odoo[6023]:   File "/home/odoo/odoo10/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2639, in activate
Mar 29 16:15:47 webserver odoo[6023]:     declare_namespace(pkg)
Mar 29 16:15:47 webserver odoo[6023]:   File "/home/odoo/odoo10/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2176, in declare_namespace
Mar 29 16:15:47 webserver odoo[6023]:     _handle_ns(packageName, path_item)
Mar 29 16:15:47 webserver odoo[6023]:   File "/home/odoo/odoo10/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2111, in _handle_ns
Mar 29 16:15:47 webserver odoo[6023]:     loader.load_module(packageName)
Mar 29 16:15:47 webserver odoo[6023]:   File "/usr/lib/python2.7/pkgutil.py", line 243, in load_module
Mar 29 16:15:47 webserver odoo[6023]:     mod = imp.load_module(fullname, self.file, self.filename, self.etc)
Mar 29 16:15:47 webserver odoo[6023]:   File "/home/odoo/odoo10/lib/python2.7/site-packages/odoo/__init__.py", line 15, in 
Mar 29 16:15:47 webserver odoo[6023]:     gevent.monkey.patch_all()
Mar 29 16:15:47 webserver odoo[6023]:   File "/home/odoo/odoo10/local/lib/python2.7/site-packages/gevent/monkey.py", line 966, in patch_all
Mar 29 16:15:47 webserver odoo[6023]:     _notify_patch(events.GeventWillPatchAllEvent(modules_to_patch, kwargs), _warnings)
Mar 29 16:15:47 webserver odoo[6023]:   File "/home/odoo/odoo10/local/lib/python2.7/site-packages/gevent/monkey.py", line 168, in _notify_patch
Mar 29 16:15:47 webserver odoo[6023]:     notify_and_call_entry_points(event)
Mar 29 16:15:47 webserver odoo[6023]:   File "/home/odoo/odoo10/local/lib/python2.7/site-packages/gevent/events.py", line 111, in notify_and_call_entry_points
Mar 29 16:15:47 webserver odoo[6023]:     for plugin in iter_entry_points(event.ENTRY_POINT_NAME):
Mar 29 16:15:47 webserver odoo[6023]: TypeError: 'NoneType' object is not callable

Stiamo sbagliando qualcosa? Come possiamo correggere questo problema?

Grazie.